/* * (C) Copyright 2003-2005 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * SPDX-License-Identifier: GPL-2.0+ ******************************************************************** * * Lots of code copied from: * * i82365.c 1.352 - Linux driver for Intel 82365 and compatible * PC Card controllers, and Yenta-compatible PCI-to-CardBus controllers. * (C) 1999 David A. Hinds */ #include #ifdef CONFIG_I82365 #include #include #include #include #include #include #include #include static struct pci_device_id supported[] = { {PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6729}, {0, 0} }; #define CYCLE_TIME 120 #ifdef DEBUG static void i82365_dump_regions (pci_dev_t dev); #endif typedef struct socket_info_t { pci_dev_t dev; u_short bcr; u_char pci_lat, cb_lat, sub_bus, cache; u_int cb_phys; socket_cap_t cap; u_short type; u_int flags; cirrus_state_t c_state; } socket_info_t; /* These definitions must match the pcic table! */ typedef enum pcic_id { IS_PD6710, IS_PD672X, IS_VT83C469 } pcic_id; typedef struct pcic_t { char *name; } pcic_t; static pcic_t pcic[] = { {" Cirrus PD6710: "}, {" Cirrus PD672x: "}, {" VIA VT83C469: "}, }; static socket_info_t socket; static socket_state_t state; static struct pccard_mem_map mem; static struct pccard_io_map io; /*====================================================================*/ /* Some PCI shortcuts */ static int pci_readb (socket_info_t * s, int r, u_char * v) { return pci_read_config_byte (s->dev, r, v); } static int pci_writeb (socket_info_t * s, int r, u_char v) { return pci_write_config_byte (s->dev, r, v); } static int pci_readw (socket_info_t * s, int r, u_short * v) { return pci_read_config_word (s->dev, r, v); } static int pci_writew (socket_info_t * s, int r, u_short v) { return pci_write_config_word (s->dev, r, v); } /*====================================================================*/ #define cb_readb(s) readb((s)->cb_phys + 1) #define cb_writeb(s, v) writeb(v, (s)->cb_phys) #define cb_writeb2(s, v) writeb(v, (s)->cb_phys + 1) #define cb_readl(s, r) readl((s)->cb_phys + (r)) #define cb_writel(s, r, v) writel(v, (s)->cb_phys + (r)) static u_char i365_get (socket_info_t * s, u_short reg) { u_char val; #ifdef CONFIG_PCMCIA_SLOT_A int slot = 0; #else int slot = 1; #endif val = I365_REG (slot, reg); cb_writeb (s, val); val = cb_readb (s); debug ("i365_get slot:%x reg: %x val: %x\n", slot, reg, val); return val; } static void i365_set (socket_info_t * s, u_short reg, u_char data) { #ifdef CONFIG_PCMCIA_SLOT_A int slot = 0; #else int slot = 1; #endif u_char val; val = I365_REG (slot, reg); cb_writeb (s, val); cb_writeb2 (s, data); debug ("i365_set slot:%x reg: %x data:%x\n", slot, reg, data); } static void i365_bset (socket_info_t * s, u_short reg, u_char mask) { i365_set (s, reg, i365_get (s, reg) | mask); } static void i365_bclr (socket_info_t * s, u_short reg, u_char mask) { i365_set (s, reg, i365_get (s, reg) & ~mask); } #if 0 /* not used */ static void i365_bflip (socket_info_t * s, u_short reg, u_char mask, int b) { u_char d = i365_get (s, reg); i365_set (s, reg, (b) ? (d | mask) : (d & ~mask)); } static u_short i365_get_pair (socket_info_t * s, u_short reg) { return (i365_get (s, reg) + (i365_get (s, reg + 1) << 8)); } #endif /* not used */ static void i365_set_pair (socket_info_t * s, u_short reg, u_short data) { i365_set (s, reg, data & 0xff); i365_set (s, reg + 1, data >> 8); } /*====================================================================== Code to save and restore global state information for Cirrus PD67xx controllers, and to set and report global configuration options. ======================================================================*/ #define flip(v,b,f) (v = ((f)<0) ? v : ((f) ? ((v)|(b)) : ((v)&(~b)))) static void cirrus_get_state (socket_info_t * s) { int i; cirrus_state_t *p = &s->c_state; p->misc1 = i365_get (s, PD67_MISC_CTL_1); p->misc1 &= (PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA); p->misc2 = i365_get (s, PD67_MISC_CTL_2); for (i = 0; i < 6; i++) p->timer[i] = i365_get (s, PD67_TIME_SETUP (0) + i); } static void cirrus_set_state (socket_info_t * s) { int i; u_char misc; cirrus_state_t *p = &s->c_state; misc = i365_get (s, PD67_MISC_CTL_2); i365_set (s, PD67_MISC_CTL_2, p->misc2); if (misc & PD67_MC2_SUSPEND) udelay (50000); misc = i365_get (s, PD67_MISC_CTL_1); misc &= ~(PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA); i365_set (s, PD67_MISC_CTL_1, misc | p->misc1); for (i = 0; i < 6; i++) i365_set (s, PD67_TIME_SETUP (0) + i, p->timer[i]); } static u_int cirrus_set_opts (socket_info_t * s) { cirrus_state_t *p = &s->c_state; u_int mask = 0xffff; char buf[200] = {0}; if (has_ring == -1) has_ring = 1; flip (p->misc2, PD67_MC2_IRQ15_RI, has_ring); flip (p->misc2, PD67_MC2_DYNAMIC_MODE, dynamic_mode); #if DEBUG if (p->misc2 & PD67_MC2_IRQ15_RI) strcat (buf, " [ring]"); if (p->misc2 & PD67_MC2_DYNAMIC_MODE) strcat (buf, " [dyn mode]"); if (p->misc1 & PD67_MC1_INPACK_ENA) strcat (buf, " [inpack]"); #endif if (p->misc2 & PD67_MC2_IRQ15_RI) mask &= ~0x8000; if (has_led > 0) { #if DEBUG strcat (buf, " [led]"); #endif mask &= ~0x1000; } if (has_dma > 0) { #if DEBUG strcat (buf, " [dma]"); #endif mask &= ~0x0600; flip (p->misc2, PD67_MC2_FREQ_BYPASS, freq_bypass); #if DEBUG if (p->misc2 & PD67_MC2_FREQ_BYPASS) strcat (buf, " [freq bypass]"); #endif } if (setup_time >= 0) p->timer[0] = p->timer[3] = setup_time; if (cmd_time > 0) { p->timer[1] = cmd_time; p->timer[4] = cmd_time * 2 + 4; } if (p->timer[1] == 0) { p->timer[1] = 6; p->timer[4] = 16; if (p->timer[0] == 0) p->timer[0] = p->timer[3] = 1; } if (recov_time >= 0) p->timer[2] = p->timer[5] = recov_time; debug ("i82365 Opt: %s [%d/%d/%d] [%d/%d/%d]\n", buf, p->timer[0], p->timer[1], p->timer[2], p->timer[3], p->timer[4], p->timer[5]); return mask; } /*====================================================================== Routines to handle common CardBus options ======================================================================*/ /* Default settings for PCI command configuration register */ #define CMD_DFLT (PCI_COMMAND_IO|PCI_COMMAND_MEMORY| \ PCI_COMMAND_MASTER|PCI_COMMAND_WAIT) static void cb_get_state (socket_info_t * s) { pci_readb (s, PCI_CACHE_LINE_SIZE, &s->cache); pci_readb (s, PCI_LATENCY_TIMER, &s->pci_lat); pci_readb (s, CB_LATENCY_TIMER, &s->cb_lat); pci_readb (s, CB_CARDBUS_BUS, &s->cap.cardbus); pci_readb (s, CB_SUBORD_BUS, &s->sub_bus); pci_readw (s, CB_BRIDGE_CONTROL, &s->bcr); } static void cb_set_state (socket_info_t * s) { pci_writew (s, PCI_COMMAND, CMD_DFLT); pci_writeb (s, PCI_CACHE_LINE_SIZE, s->cache); pci_writeb (s, PCI_LATENCY_TIMER, s->pci_lat); pci_writeb (s, CB_LATENCY_TIMER, s->cb_lat); pci_writeb (s, CB_CARDBUS_BUS, s->cap.cardbus); pci_writeb (s, CB_SUBORD_BUS, s->sub_bus); pci_writew (s, CB_BRIDGE_CONTROL, s->bcr); } static void cb_set_opts (socket_info_t * s) { } /*====================================================================== Power control for Cardbus controllers: used both for 16-bit and Cardbus cards. ======================================================================*/ static int cb_set_power (socket_info_t * s, socket_state_t * state) { u_int reg = 0; reg = I365_PWR_NORESET; if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO; if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT; if (state->Vpp != 0) { if (state->Vpp == 120) { reg |= I365_VPP1_12V; puts (" 12V card found: "); } else if (state->Vpp == state->Vcc) { reg |= I365_VPP1_5V; } else { puts (" power not found: "); return -1; } } if (state->Vcc != 0) { reg |= I365_VCC_5V; if (state->Vcc == 33) { puts (" 3.3V card found: "); i365_bset (s, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); } else if (state->Vcc == 50) { puts (" 5V card found: "); i365_bclr (s, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); } else { puts (" power not found: "); return -1; } } if (reg != i365_get (s, I365_POWER)) { reg = (I365_PWR_OUT | I365_PWR_NORESET | I365_VCC_5V | I365_VPP1_5V); i365_set (s, I365_POWER, reg); } return 0; } /*====================================================================== Generic routines to get and set controller options ======================================================================*/ static void get_bridge_state (socket_info_t * s) { cirrus_get_state (s); cb_get_state (s); } static void set_bridge_state (socket_info_t * s) { cb_set_state (s); i365_set (s, I365_GBLCTL, 0x00); i365_set (s, I365_GENCTL, 0x00); cirrus_set_state (s); } static void set_bridge_opts (socket_info_t * s) { cirrus_set_opts (s); cb_set_opts (s); } /*====================================================================*/ #define PD67_EXT_INDEX 0x2e /* Extension index */ #define PD67_EXT_DATA 0x2f /* Extension data */ #define PD67_EXD_VS1(s) (0x01 << ((s)<<1)) #define pd67_ext_get(s, r) \ (i365_set(s, PD67_EXT_INDEX, r), i365_get(s, PD67_EXT_DATA)) static int i365_get_status (socket_info_t * s, u_int * value) { u_int status; u_char val; u_char power, vcc, vpp; u_int powerstate; status = i365_get (s, I365_IDENT); status = i365_get (s, I365_STATUS); *value = ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; if (i365_get (s, I365_INTCTL) & I365_PC_IOCARD) { *value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; } else { *value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; *value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; } *value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; *value |= (status & I365_CS_READY) ? SS_READY : 0; *value |= (status & I365_CS_POWERON) ? SS_POWERON : 0; /* Check for Cirrus CL-PD67xx chips */ i365_set (s, PD67_CHIP_INFO, 0); val = i365_get (s, PD67_CHIP_INFO); s->type = -1; if ((val & PD67_INFO_CHIP_ID) == PD67_INFO_CHIP_ID) { val = i365_get (s, PD67_CHIP_INFO); if ((val & PD67_INFO_CHIP_ID) == 0) { s->type = (val & PD67_INFO_SLOTS) ? IS_PD672X : IS_PD6710; i365_set (s, PD67_EXT_INDEX, 0xe5); if (i365_get (s, PD67_EXT_INDEX) != 0xe5) s->type = IS_VT83C469; } } else { printf ("no Cirrus Chip found\n"); *value = 0; return -1; } power = i365_get (s, I365_POWER); state.flags |= (power & I365_PWR_AUTO) ? SS_PWR_AUTO : 0; state.flags |= (power & I365_PWR_OUT) ? SS_OUTPUT_ENA : 0; vcc = power & I365_VCC_MASK; vpp = power & I365_VPP1_MASK; state.Vcc = state.Vpp = 0; if((vcc== 0) || (vpp == 0)) { /* * On the Cirrus we get the info which card voltage * we have in EXTERN DATA and write it to MISC_CTL1 */ powerstate = pd67_ext_get(s, PD67_EXTERN_DATA); if (powerstate & PD67_EXD_VS1(0)) { /* 5V Card */ i365_bclr (s, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); } else { /* 3.3V Card */ i365_bset (s, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); } i365_set (s, I365_POWER, (I365_PWR_OUT | I365_PWR_NORESET | I365_VCC_5V | I365_VPP1_5V)); power = i365_get (s, I365_POWER); } if (power & I365_VCC_5V) { state.Vcc = (i365_get(s, PD67_MISC_CTL_1) & PD67_MC1_VCC_3V) ? 33 : 50; } if (power == I365_VPP1_12V) state.Vpp = 120; /* IO card, RESET flags, IO interrupt */ power = i365_get (s, I365_INTCTL); state.flags |= (power & I365_PC_RESET) ? 0 : SS_RESET; if (power & I365_PC_IOCARD) state.flags |= SS_IOCARD; state.io_irq = power & I365_IRQ_MASK; /* Card status change mask */ power = i365_get (s, I365_CSCINT); state.csc_mask = (power & I365_CSC_DETECT) ? SS_DETECT : 0; if (state.flags & SS_IOCARD) state.csc_mask |= (power & I365_CSC_STSCHG) ? SS_STSCHG : 0; else { state.csc_mask |= (power & I365_CSC_BVD1) ? SS_BATDEAD : 0; state.csc_mask |= (power & I365_CSC_BVD2) ? SS_BATWARN : 0; state.csc_mask |= (power & I365_CSC_READY) ? SS_READY : 0; } debug ("i82365: GetStatus(0) = flags %#3.3x, Vcc %d, Vpp %d, " "io_irq %d, csc_mask %#2.2x\n", state.flags, state.Vcc, state.Vpp, state.io_irq, state.csc_mask); return 0; } /* i365_get_status */ static int i365_set_socket (socket_info_t * s, socket_state_t * state) { u_char reg; set_bridge_state (s); /* IO card, RESET flag */ reg = 0; reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; i365_set (s, I365_INTCTL, reg); cb_set_power (s, state); #if 0 /* Card status change interrupt mask */ reg = s->cs_irq << 4; if (state->csc_mask & SS_DETECT) reg |= I365_CSC_DETECT; if (state->flags & SS_IOCARD) { if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG; } else { if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1; if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2; if (state->csc_mask & SS_READY) reg |= I365_CSC_READY; } i365_set (s, I365_CSCINT, reg); i365_get (s, I365_CSC); #endif /* 0 */ return 0; } /* i365_set_socket */ /*====================================================================*/ static int i365_set_mem_map (socket_info_t * s, struct pccard_mem_map *mem) { u_short base, i; u_char map; debug ("i82365: SetMemMap(%d, %#2.2x, %d ns, %#5.5lx-%#5.5lx, %#5.5x)\n", mem->map, mem->flags, mem->speed, mem->sys_start, mem->sys_stop, mem->card_start); map = mem->map; if ((map > 4) || (mem->card_start > 0x3ffffff) || (mem->sys_start > mem->sys_stop) || (mem->speed > 1000)) { return -1; } /* Turn off the window before changing anything */ if (i365_get (s, I365_ADDRWIN) & I365_ENA_MEM (map)) i365_bclr (s, I365_ADDRWIN, I365_ENA_MEM (map)); /* Take care of high byte, for PCI controllers */ i365_set (s, CB_MEM_PAGE (map), mem->sys_start >> 24); base = I365_MEM (map); i = (mem->sys_start >> 12) & 0x0fff; if (mem->flags & MAP_16BIT) i |= I365_MEM_16BIT; if (mem->flags & MAP_0WS) i |= I365_MEM_0WS; i365_set_pair (s, base + I365_W_START, i); i = (mem->sys_stop >> 12) & 0x0fff; switch (mem->speed / CYCLE_TIME) { case 0: break; case 1: i |= I365_MEM_WS0; break; case 2: i |= I365_MEM_WS1; break; default: i |= I365_MEM_WS1 | I365_MEM_WS0; break; } i365_set_pair (s, base + I365_W_STOP, i); i = 0; if (mem->flags & MAP_WRPROT) i |= I365_MEM_WRPROT; if (mem->flags & MAP_ATTRIB) i |= I365_MEM_REG; i365_set_pair (s, base + I365_W_OFF, i); /* set System Memory map Upper Adress */ i365_set(s, PD67_EXT_INDEX, PD67_MEM_PAGE(map)); i365_set(s, PD67_EXT_DATA, ((mem->sys_start >> 24) & 0xff)); /* Turn on the window if necessary */ if (mem->flags & MAP_ACTIVE) i365_bset (s, I365_ADDRWIN, I365_ENA_MEM (map)); return 0; } /* i365_set_mem_map */ static int i365_set_io_map (socket_info_t * s, struct pccard_io_map *io) { u_char map, ioctl; map = io->map; /* comment out: comparison is always false due to limited range of data type */ if ((map > 1) || /* (io->start > 0xffff) || (io->stop > 0xffff) || */ (io->stop < io->start)) return -1; /* Turn off the window before changing anything */ if (i365_get (s, I365_ADDRWIN) & I365_ENA_IO (map)) i365_bclr (s, I365_ADDRWIN, I365_ENA_IO (map)); i365_set_pair (s, I365_IO (map) + I365_W_START, io->start); i365_set_pair (s, I365_IO (map) + I365_W_STOP, io->stop); ioctl = i365_get (s, I365_IOCTL) & ~I365_IOCTL_MASK (map); if (io->speed) ioctl |= I365_IOCTL_WAIT (map); if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS (map); if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT (map); if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16 (map); i365_set (s, I365_IOCTL, ioctl); /* Turn on the window if necessary */ if (io->flags & MAP_ACTIVE) i365_bset (s, I365_ADDRWIN, I365_ENA_IO (map)); return 0; } /* i365_set_io_map */ /*====================================================================*/ /* * PCI_ADDR = (HOST_ADDR - 0xfe000000) * see MPC 8245 Users Manual Adress Map B */ #define HOST_TO_PCI(addr) ((addr) - 0xfe000000) #define PCI_TO_HOST(addr) ((addr) + 0xfe000000) static int i82365_init (void) { u_int val; int i; if ((socket.dev = pci_find_devices (supported, 0)) < 0) { /* Controller not found */ printf ("No PD67290 device found !!\n"); return 1; } debug ("i82365 Device Found!\n"); socket.cb_phys = PCMCIA_IO_BASE; /* set base address */ pci_write_config_dword (socket.dev, PCI_BASE_ADDRESS_0, HOST_TO_PCI(socket.cb_phys)); /* enable mapped memory and IO addresses */ pci_write_config_dword (socket.dev, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_IO | PCI_COMMAND_WAIT); get_bridge_state (&socket); set_bridge_opts (&socket); i = i365_get_status (&socket, &val); if (i > -1) { puts (pcic[socket.type].name); } else { printf ("i82365: Controller not found.\n"); return 1; } if((val & SS_DETECT) != SS_DETECT){ puts ("No card\n"); return 1; } state.flags |= SS_OUTPUT_ENA; i365_set_socket (&socket, &state); for (i = 500; i; i--) { if ((i365_get (&socket, I365_STATUS) & I365_CS_READY)) break; udelay (1000); } if (i == 0) { /* PC Card not ready for data transfer */ puts ("i82365 PC Card not ready for data transfer\n"); return 1; } debug (" PC Card ready for data transfer: "); mem.map = 0; mem.flags = MAP_ATTRIB | MAP_ACTIVE; mem.speed = 300; mem.sys_start = CONFIG_SYS_PCMCIA_MEM_ADDR; mem.sys_stop = CONFIG_SYS_PCMCIA_MEM_ADDR + CONFIG_SYS_PCMCIA_MEM_SIZE - 1; mem.card_start = 0; i365_set_mem_map (&socket, &mem); mem.map = 1; mem.flags = MAP_ACTIVE; mem.speed = 300; mem.sys_start = CONFIG_SYS_PCMCIA_MEM_ADDR + CONFIG_SYS_PCMCIA_MEM_SIZE; mem.sys_stop = CONFIG_SYS_PCMCIA_MEM_ADDR + (2 * CONFIG_SYS_PCMCIA_MEM_SIZE) - 1; mem.card_start = 0; i365_set_mem_map (&socket, &mem); #ifdef DEBUG i82365_dump_regions (socket.dev); #endif return 0; } static void i82365_exit (void) { io.map = 0; io.flags = 0; io.speed = 0; io.start = 0; io.stop = 0x1; i365_set_io_map (&socket, &io); mem.map = 0; mem.flags = 0; mem.speed = 0; mem.sys_start = 0; mem.sys_stop = 0x1000; mem.card_start = 0; i365_set_mem_map (&socket, &mem); mem.map = 1; mem.flags = 0; mem.speed = 0; mem.sys_start = 0; mem.sys_stop = 0x1000; mem.card_start = 0; i365_set_mem_map (&socket, &mem); state.Vcc = state.Vpp = 0; i365_set_socket (&socket, &state); } int pcmcia_on (void) { u_int rc; debug ("Enable PCMCIA " PCMCIA_SLOT_MSG "\n"); rc = i82365_init(); if (rc) goto exit; rc = check_ide_device(0); if (rc == 0) goto exit; i82365_exit(); exit: return rc; } #if defined(CONFIG_CMD_PCMCIA) int pcmcia_off (void) { printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n"); i82365_exit(); return 0; } #endif /*====================================================================== Debug stuff ======================================================================*/ #ifdef DEBUG static void i82365_dump_regions (pci_dev_t dev) { u_int tmp[2]; u_int *mem = (void *) socket.cb_phys; u_char *cis = (void *) CONFIG_SYS_PCMCIA_MEM_ADDR; u_char *ide = (void *) (CONFIG_SYS_ATA_BASE_ADDR + CONFIG_SYS_ATA_REG_OFFSET); pci_read_config_dword (dev, 0x00, tmp + 0); pci_read_config_dword (dev, 0x80, tmp + 1); printf ("PCI CONF: %08X ... %08X\n", tmp[0], tmp[1]); printf ("PCI MEM: ... %08X ... %08X\n", mem[0x8 / 4], mem[0x800 / 4]); printf ("CIS: ...%c%c%c%c%c%c%c%c...\n", cis[0x38], cis[0x3a], cis[0x3c], cis[0x3e], cis[0x40], cis[0x42], cis[0x44], cis[0x48]); printf ("CIS CONF: %02X %02X %02X ...\n", cis[0x200], cis[0x202], cis[0x204]); printf ("IDE: %02X %02X %02X %02X %02X %02X %02X %02X\n", ide[0], ide[1], ide[2], ide[3], ide[4], ide[5], ide[6], ide[7]); } #endif /* DEBUG */ #endif /* CONFIG_I82365 */